/* roulang page: index */
:root{
  --brand:#FF5A2B;
  --brand-deep:#D93F13;
  --brand-soft:#FFF0EA;
  --accent:#12B886;
  --accent-soft:#E6F8F2;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --ink:#14171A;
  --text:#14171A;
  --text-2:#4A5056;
  --text-3:#7C8388;
  --line:#E6E0D8;
  --line-dark:rgba(255,255,255,.14);
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,23,26,.06),0 12px 28px -14px rgba(20,23,26,.20);
  --shadow-hover:0 2px 6px rgba(20,23,26,.08),0 22px 44px -18px rgba(20,23,26,.30);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

/* ---------- 容器与通用 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--surface{background:var(--surface)}
.section--bg{background:var(--bg)}
.section--ink{background:var(--ink);color:#fff;padding:56px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.6vw,32px)}
.sec-head .sub{color:var(--text-3);font-size:14px;max-width:560px;margin-top:8px}
.section--ink .sec-head h2{color:#fff}
.section--ink .sec-head .sub{color:rgba(255,255,255,.62)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600}
.link-more span{transition:transform var(--ease)}
.link-more:hover span{transform:translateX(3px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(255,90,43,.9)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(255,90,43,.95)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#F3EEE7;transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn-block{width:100%}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 26px -20px rgba(20,23,26,.55)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:-.01em;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  display:grid;place-items:center;color:#fff;
}
.logo-mark svg{width:19px;height:19px}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;color:var(--text-2);padding:8px 0}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-cta{flex-shrink:0}
.mobile-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);place-items:center;background:#fff;
}
.mobile-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.mobile-toggle span::before,.mobile-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.mobile-toggle span::before{top:-6px}
.mobile-toggle span::after{top:6px}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);background:#fff;z-index:120;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  padding:24px;display:flex;flex-direction:column;box-shadow:-20px 0 50px -24px rgba(20,23,26,.6);
}
.drawer.open{transform:translateX(0)}
.drawer-close{align-self:flex-end;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:20px;line-height:1;display:grid;place-items:center;margin-bottom:18px}
.drawer a.drawer-link{font-size:17px;line-height:52px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer a.drawer-link.active{color:var(--brand);font-weight:600}
.drawer .btn{margin-top:22px}
.overlay{
  position:fixed;inset:0;background:rgba(20,23,26,.46);z-index:110;opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.overlay.open{opacity:1;pointer-events:auto}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--bg);padding:56px 0 96px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.city-pick{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:18px;
}
.city-pick svg{width:14px;height:14px;color:var(--brand)}
.hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.16;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:16px;color:var(--text-2);max-width:540px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-stats{display:flex;gap:32px;flex-wrap:wrap;border-top:1px dashed var(--line);padding-top:22px}
.hero-stats div{min-width:96px}
.hero-stats b{display:block;font-family:var(--mono);font-size:24px;font-weight:600;letter-spacing:.02em;color:var(--ink)}
.hero-stats span{font-size:12px;color:var(--text-3)}
.hero-media{position:relative}
.hero-photo{
  aspect-ratio:4/3;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);background:#EFEAE2;
}
.hero-photo img{width:100%;height:100%;object-fit:cover;border-radius:0}
.float-card{
  position:absolute;left:-18px;bottom:-26px;width:216px;background:#fff;border-radius:14px;
  padding:14px 16px;box-shadow:var(--shadow-hover);border:1px solid var(--line);
}
.float-card .fc-label{font-size:11px;letter-spacing:.1em;color:var(--brand);font-weight:600;margin-bottom:6px}
.float-card strong{display:block;font-size:14px;margin-bottom:8px}
.float-card .fc-row{display:flex;gap:10px;font-size:12px;color:var(--text-3);font-family:var(--mono)}
.hero-slash{
  position:absolute;left:0;right:0;bottom:0;height:56px;background:var(--surface);
  clip-path:polygon(0 100%,100% 0,100% 100%);
}

/* ---------- 热度条 ---------- */
.heat{background:var(--ink);color:#fff;padding:34px 0}
.heat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.heat-item b{
  display:block;font-family:var(--mono);font-size:28px;font-weight:600;letter-spacing:.02em;
  transition:transform var(--ease);color:#fff;
}
.heat-item:hover b{transform:translateY(-3px);color:var(--brand)}
.heat-item span{font-size:12px;color:rgba(255,255,255,.58);letter-spacing:.06em}

/* ---------- 场景九宫格 ---------- */
.tile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tile{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.tile:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:var(--shadow)}
.tile-icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin-bottom:16px;transition:transform var(--ease);
}
.tile:hover .tile-icon{transform:translateX(4px)}
.tile-icon svg{width:21px;height:21px}
.tile h3{font-size:17px;margin-bottom:6px}
.tile p{font-size:13px;color:var(--text-3);line-height:1.6}

/* ---------- 约跑局卡片 ---------- */
.run-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.run-card{
  display:grid;grid-template-columns:132px 1fr auto;gap:16px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.run-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#F0C9B9}
.run-thumb{aspect-ratio:3/2;border-radius:var(--r-img);overflow:hidden;background:#EFEAE2}
.run-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.run-body{min-width:0}
.run-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:4px}
.run-top h3{font-size:16px;line-height:1.35}
.pace-badge{
  font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--accent-soft);color:#0B7C5C;border-radius:6px;padding:2px 8px;white-space:nowrap;
}
.run-meta{font-size:12px;color:var(--text-3);display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.run-meta i{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block}
.avatars{display:flex;margin-top:8px;align-items:center}
.avatars i{
  width:22px;height:22px;border-radius:50%;background:#E9E2D8;border:2px solid #fff;margin-right:-7px;
  display:grid;place-items:center;font-size:10px;font-style:normal;color:var(--text-3);font-weight:600;
}
.avatars span{margin-left:14px;font-size:12px;color:var(--text-3)}
.run-join{flex-shrink:0}

/* ---------- CMS 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#F0C9B9}
.news-thumb{display:block;aspect-ratio:3/2;overflow:hidden;background:#EFEAE2}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;align-self:flex-start;
}
.news-body h3{font-size:16px;line-height:1.45}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{font-size:13px;color:var(--text-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3);padding-top:10px;border-top:1px dashed var(--line)}
.news-meta .arrow{color:var(--brand);font-weight:700;transition:transform var(--ease)}
.news-card:hover .news-meta .arrow{transform:translateX(3px)}
.empty-state{
  text-align:center;padding:56px 20px;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state .es-icon{
  width:52px;height:52px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin:0 auto 14px;font-size:22px;font-weight:700;
}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:18px}

/* ---------- 三步 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;position:relative;
}
.step-num{
  width:44px;height:44px;border-radius:12px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-family:var(--mono);font-size:15px;font-weight:600;
  letter-spacing:.02em;margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:13px;color:var(--text-3)}
.step::after{
  content:"";position:absolute;right:-24px;top:50%;width:24px;height:0;
  border-top:2px dashed var(--line);transform:translateY(-50%);
}
.step:last-child::after{display:none}

/* ---------- 时间轴 ---------- */
.timeline-wrap{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start}
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:6px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);
}
.tl-item::after{
  content:"";position:absolute;left:-29px;top:11px;width:10px;height:10px;border-radius:50%;background:var(--brand);
}
.tl-item h3{font-size:17px;margin-bottom:6px}
.tl-item p{font-size:14px;color:var(--text-2)}
.tl-photo{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:3/4;background:#EFEAE2}
.tl-photo img{width:100%;height:100%;object-fit:cover;border-radius:0}

/* ---------- 安全体系（深色） ---------- */
.safe-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.safe-card{
  border:1px solid var(--line-dark);border-radius:var(--r-card);padding:24px;
  background:rgba(255,255,255,.04);transition:background var(--ease),transform var(--ease),border-color var(--ease);
}
.safe-card:hover{background:rgba(255,255,255,.08);transform:translateY(-3px);border-color:rgba(255,90,43,.55)}
.safe-card .s-icon{width:36px;height:36px;color:var(--brand);margin-bottom:14px}
.safe-card .s-icon svg{width:24px;height:24px}
.safe-card h3{font-size:16px;color:#fff;margin-bottom:8px}
.safe-card p{font-size:13px;color:rgba(255,255,255,.62);line-height:1.7}

/* ---------- 城市跑点 ---------- */
.city-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.city-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.city-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand)}
.city-card h3{font-size:16px;margin-bottom:10px}
.city-card .cc-nums{display:flex;gap:18px;font-size:12px;color:var(--text-3)}
.city-card .cc-nums b{font-family:var(--mono);font-size:15px;font-weight:600;color:var(--ink);display:block}
.city-card .cc-link{
  display:block;margin-top:12px;font-size:13px;font-weight:600;color:var(--brand);
  opacity:0;transform:translateY(4px);transition:opacity var(--ease),transform var(--ease);
}
.city-card:hover .cc-link{opacity:1;transform:translateY(0)}

/* ---------- 配速 ---------- */
.pace-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pace-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.pace-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.pace-card b{display:block;font-family:var(--mono);font-size:24px;font-weight:600;letter-spacing:.02em;margin-bottom:4px}
.pace-card .pc-name{font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:12px}
.pace-card p{font-size:13px;color:var(--text-3);margin-bottom:16px;min-height:44px}
.bar{height:6px;border-radius:99px;background:#EFEAE2;overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px}
.pc-1 b{color:#7C8388}.pc-1 .bar i{width:34%;background:#9AA1A7}
.pc-2 b{color:#0B7C5C}.pc-2 .bar i{width:56%;background:var(--accent)}
.pc-3 b{color:#C2721A}.pc-3 .bar i{width:78%;background:#F2B705}
.pc-4 b{color:var(--brand)}.pc-4 .bar i{width:96%;background:var(--brand)}

/* ---------- 跑友说 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);
}
.quote-card:nth-child(2){margin-top:18px}
.quote-card:nth-child(3){margin-top:8px}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.quote-card .stars{color:#F2B705;font-size:13px;letter-spacing:.14em;margin-bottom:12px}
.quote-card blockquote{margin:0 0 18px;font-size:15px;line-height:1.75;color:var(--text-2)}
.quote-user{display:flex;align-items:center;gap:10px}
.quote-user .q-avatar{
  width:38px;height:38px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:700;font-size:14px;
}
.quote-user b{display:block;font-size:14px}
.quote-user span{font-size:12px;color:var(--text-3)}

/* ---------- 新手 ---------- */
.start-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.start-list{display:flex;flex-direction:column;gap:16px}
.start-item{display:flex;gap:16px;align-items:flex-start}
.start-item .si-num{
  flex-shrink:0;width:32px;height:32px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:600;
}
.start-item h3{font-size:16px;margin-bottom:2px}
.start-item p{font-size:13px;color:var(--text-3)}
.start-photo{border-radius:20px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/5;background:#EFEAE2}
.start-photo img{width:100%;height:100%;object-fit:cover;border-radius:0}

/* ---------- 天气与装备 ---------- */
.weather-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px}
.panel h3{font-size:17px;margin-bottom:20px}
.w-row{margin-bottom:18px}
.w-row:last-child{margin-bottom:0}
.w-top{display:flex;justify-content:space-between;font-size:13px;color:var(--text-2);margin-bottom:8px}
.w-top b{font-family:var(--mono);font-weight:600;color:var(--ink)}
.gear-list li{
  display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);
  padding:12px 0;border-bottom:1px dashed var(--line);
}
.gear-list li:last-child{border-bottom:0}
.gear-list li span{color:var(--text-3);font-size:12px;flex-shrink:0}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q .fq-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;background:#F4EFE8;
  display:grid;place-items:center;position:relative;transition:transform var(--ease),background var(--ease);
}
.faq-q .fq-icon::before,.faq-q .fq-icon::after{
  content:"";position:absolute;background:var(--text-2);border-radius:2px;transition:background var(--ease);
}
.faq-q .fq-icon::before{width:10px;height:2px}
.faq-q .fq-icon::after{width:2px;height:10px}
.faq-item.open .faq-q{color:var(--brand)}
.faq-item.open .fq-icon{transform:rotate(180deg);background:var(--brand-soft)}
.faq-item.open .fq-icon::before,.faq-item.open .fq-icon::after{background:var(--brand)}
.faq-item.open .fq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{
  padding:0 22px 20px 22px;font-size:15px;line-height:1.8;color:var(--text-2);
  border-left:3px solid var(--brand);margin-left:0;
}
.faq-item.open .faq-a{max-height:340px}

/* ---------- 转化区 ---------- */
.join-card{
  background:var(--ink);border-radius:24px;padding:44px;display:grid;
  grid-template-columns:1fr 420px;gap:48px;align-items:center;color:#fff;
}
.join-card h2{font-size:clamp(24px,3vw,34px);color:#fff;margin-bottom:12px}
.join-card .jc-desc{font-size:14px;color:rgba(255,255,255,.62);max-width:420px}
.join-form{display:flex;flex-direction:column;gap:14px}
.field label{display:block;font-size:13px;font-weight:600;color:rgba(255,255,255,.78);margin-bottom:6px}
.field select,.field input[type=text]{
  width:100%;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.07);color:#fff;padding:0 14px;transition:border-color var(--ease),background var(--ease);
}
.field select:hover,.field input[type=text]:hover{border-color:rgba(255,255,255,.36)}
.field select:focus,.field input[type=text]:focus{outline:none;border-color:var(--brand);background:rgba(255,255,255,.1);box-shadow:0 0 0 2px rgba(255,90,43,.28)}
.field select option{color:#14171A}
.radio-row{display:flex;gap:10px;flex-wrap:wrap}
.radio-row label{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.2);font-size:13px;color:rgba(255,255,255,.8);cursor:pointer;
  transition:border-color var(--ease),background var(--ease),color var(--ease);
}
.radio-row input{accent-color:var(--brand)}
.radio-row label:hover{border-color:rgba(255,255,255,.4)}
.radio-row label:has(input:checked){background:var(--brand);border-color:var(--brand);color:#fff}
.form-note{font-size:12px;color:rgba(255,255,255,.48);line-height:1.6}

/* ---------- 合规说明条 ---------- */
.compliance{background:var(--bg);padding:22px 0;border-top:1px solid var(--line)}
.compliance ul{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:center}
.compliance li{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.compliance li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:56px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.55);max-width:300px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13px;color:rgba(255,255,255,.55)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:12px;
  color:rgba(255,255,255,.45);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-strip{height:4px;background:linear-gradient(90deg,var(--brand),var(--brand-deep) 55%,#F2B705)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero-grid{gap:36px}
  .safe-grid{grid-template-columns:repeat(2,1fr)}
  .city-grid{grid-template-columns:repeat(3,1fr)}
  .pace-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .nav-links{gap:20px}
  .join-card{grid-template-columns:1fr;padding:34px}
}
@media (max-width:960px){
  .nav-links,.nav-cta{display:none}
  .mobile-toggle{display:grid}
  .hero{padding:40px 0 76px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1;max-width:560px}
  .float-card{left:auto;right:12px;bottom:-20px;width:196px}
  .tile-grid{grid-template-columns:repeat(2,1fr)}
  .run-list{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
  .timeline-wrap{grid-template-columns:1fr}
  .tl-photo{max-width:420px;aspect-ratio:4/3}
  .start-grid{grid-template-columns:1fr;gap:32px}
  .start-photo{max-width:420px;margin:0 auto;aspect-ratio:4/3}
  .weather-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .quote-card:nth-child(2),.quote-card:nth-child(3){margin-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .heat-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:44px 0}
  .section--ink{padding:40px 0}
  .hero h1{font-size:30px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:20px}
  .hero-stats b{font-size:20px}
  .tile-grid,.city-grid,.pace-grid,.news-grid,.safe-grid{grid-template-columns:1fr}
  .run-card{grid-template-columns:104px 1fr;gap:12px}
  .run-join{grid-column:1 / -1;width:100%}
  .sec-head{margin-bottom:24px}
  .panel{padding:20px}
  .join-card{padding:24px;border-radius:18px}
  .faq-q{font-size:15px;padding:16px 16px}
  .faq-a p{padding:0 16px 16px 16px}
  .footer-grid{grid-template-columns:1fr}
  .compliance ul{flex-direction:column;align-items:flex-start;gap:8px}
  .float-card{width:170px;padding:12px;right:8px}
  .btn{width:auto}
}

/* roulang page: article */
:root{
  --brand:#FF5A2B;
  --brand-deep:#D93F13;
  --brand-soft:#FFF0EA;
  --accent:#12B886;
  --accent-soft:#E6F8F2;
  --amber:#F2B705;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --ink:#14171A;
  --text:#14171A;
  --text-2:#4A5056;
  --text-3:#7C8388;
  --line:#E6E0D8;
  --line-dark:rgba(255,255,255,.14);
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,23,26,.06),0 12px 28px -14px rgba(20,23,26,.20);
  --shadow-hover:0 2px 6px rgba(20,23,26,.08),0 22px 44px -18px rgba(20,23,26,.30);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--surface{background:var(--surface)}
.section--bg{background:var(--bg)}
.section--ink{background:var(--ink);color:#fff;padding:56px 0}
.sec-head{max-width:720px;margin-bottom:32px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-head .sub{font-size:15px;color:var(--text-2);margin-top:10px}
.section--ink .sec-head h2{color:#fff}
.section--ink .sec-head .sub{color:rgba(255,255,255,.62)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(255,90,43,.9)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(255,90,43,.95)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#F3EEE7;transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.text-link span{transition:transform var(--ease)}
.text-link:hover{color:var(--brand-deep)}
.text-link:hover span{transform:translateX(3px)}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 26px -20px rgba(20,23,26,.55)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:-.01em;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  display:grid;place-items:center;color:#fff;
}
.logo-mark svg{width:19px;height:19px}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;color:var(--text-2);padding:8px 0}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-cta{flex-shrink:0}
.mobile-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);place-items:center;background:#fff;
}
.mobile-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.mobile-toggle span::before,.mobile-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.mobile-toggle span::before{top:-6px}
.mobile-toggle span::after{top:6px}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);background:#fff;z-index:120;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  padding:24px;display:flex;flex-direction:column;box-shadow:-20px 0 50px -24px rgba(20,23,26,.6);
}
.drawer.open{transform:translateX(0)}
.drawer-close{align-self:flex-end;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:20px;line-height:1;display:grid;place-items:center;margin-bottom:18px}
.drawer a.drawer-link{font-size:17px;line-height:52px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer a.drawer-link:hover{color:var(--brand)}
.drawer .btn{margin-top:22px}
/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line);padding:16px 0}
.crumb-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C9C2B8}
.breadcrumb .current{color:var(--text);font-weight:600}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.02em;
}
/* ---------- 文章标题头 ---------- */
.article-head{background:var(--surface);padding:40px 0 0}
.article-head .head-inner{max-width:1020px}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.015em;
  color:var(--ink);
  margin-bottom:18px;
}
.meta-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3);padding-bottom:22px;border-bottom:1px solid var(--line)}
.meta-line b{font-weight:600;color:var(--text-2)}
.meta-line .dot{width:3px;height:3px;border-radius:50%;background:#C9C2B8}
.meta-line .city-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:#0E8A66;font-size:12px;font-weight:600;
}
/* ---------- 文章布局 ---------- */
.article-body{background:var(--surface);padding:40px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 304px;gap:48px;align-items:start}
.article-main{min-width:0;max-width:760px}
/* 要点卡 */
.keypoints{
  background:var(--brand-soft);border-left:4px solid var(--brand);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:22px 26px;margin-bottom:36px;
}
.keypoints h2{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.02em;margin-bottom:12px}
.keypoints ul{list-style:none;margin:0;padding:0}
.keypoints li{position:relative;padding-left:18px;font-size:14.5px;line-height:1.75;color:var(--text-2);margin-bottom:8px}
.keypoints li:last-child{margin-bottom:0}
.keypoints li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
/* 正文排版 */
.prose{max-width:760px;font-size:16px;line-height:1.85;color:var(--text-2);word-break:break-word}
.prose p{margin:0 0 18px}
.prose h2{
  font-size:clamp(21px,2.4vw,27px);line-height:1.35;font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;position:relative;
}
.prose h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand)}
.prose h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--ink);margin:28px 0 12px}
.prose h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 10px}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--brand-deep)}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:12px;line-height:1.8}
.prose li::marker{color:var(--brand)}
.prose blockquote{
  margin:24px 0;padding:16px 22px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;margin:24px 0 8px;height:auto}
.prose figure{margin:24px 0}
.prose figcaption{font-size:12px;color:var(--text-3);text-align:center;margin-top:8px}
.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:20px 0}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:var(--bg);font-weight:600;color:var(--ink)}
.prose hr{border:0;border-top:1px dashed var(--line);margin:32px 0}
.prose strong{color:var(--ink)}
.empty-note{
  background:var(--bg);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--text-2);
}
.empty-note strong{display:block;font-size:18px;color:var(--ink);margin-bottom:8px}
.empty-note .btn{margin-top:18px}
/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow)}
.side-card h3{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.02em;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand)}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list li{margin-bottom:4px}
.toc-list a{
  display:block;font-size:13.5px;color:var(--text-2);padding:7px 10px;border-radius:8px;
  border-left:2px solid transparent;transition:all var(--ease);
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand);border-left-color:var(--brand)}
.run-mini{list-style:none;margin:0;padding:0}
.run-mini li{border-bottom:1px dashed var(--line);padding:10px 0}
.run-mini li:first-child{padding-top:0}
.run-mini li:last-child{border-bottom:0;padding-bottom:0}
.run-mini a{display:block}
.run-mini .mini-title{font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.run-mini a:hover .mini-title{color:var(--brand)}
.run-mini .mini-meta{font-family:var(--mono);font-size:11.5px;color:var(--text-3);letter-spacing:.02em;margin-top:4px}
.side-note{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:12px}
/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#DCD3C7}
.related-thumb{aspect-ratio:3/2;overflow:hidden;background:#EFEAE2}
.related-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.related-body h3{font-size:15.5px;line-height:1.55;font-weight:600;color:var(--ink)}
.related-card:hover .related-body h3{color:var(--brand)}
.related-meta{font-family:var(--mono);font-size:11.5px;color:var(--text-3);letter-spacing:.02em;margin-top:auto}
/* ---------- 作者名片 ---------- */
.author-card{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
}
.author-avatar{width:74px;height:74px;border-radius:18px;overflow:hidden;flex-shrink:0;background:#EFEAE2}
.author-avatar img{width:100%;height:100%;object-fit:cover;border-radius:0}
.author-info{flex:1;min-width:200px}
.author-info h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px}
.author-info p{font-size:14px;color:var(--text-2);line-height:1.7}
.author-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--accent-soft);color:#0E8A66;font-size:12px;font-weight:600;
}
.tag--line{background:var(--bg);color:var(--text-2);border:1px solid var(--line)}
/* ---------- 上一篇 / 返回 ---------- */
.nextprev{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:22px}
.np-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow);transition:box-shadow var(--ease),transform var(--ease);
}
.np-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.np-label{font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-bottom:8px}
.np-title{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.55}
.np-card:hover .np-title{color:var(--brand)}
.back-row{text-align:center;padding:8px 0 0}
/* ---------- 底部 CTA ---------- */
.cta-strip{background:var(--ink);color:#fff;padding:44px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-inner p{font-size:14px;color:rgba(255,255,255,.62);margin-top:8px}
/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo small{color:rgba(255,255,255,.5)}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.6)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);padding:20px 0 26px;
  font-size:12.5px;color:rgba(255,255,255,.45);
}
.footer-strip{height:4px;background:linear-gradient(90deg,var(--brand),var(--brand-deep) 55%,var(--accent))}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-side{position:static}
  .side-card{box-shadow:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:960px){
  .nav-links,.nav-cta{display:none}
  .mobile-toggle{display:grid}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
}
@media (max-width:768px){
  .article-head{padding-top:28px}
  .article-head h1{font-size:clamp(24px,5.6vw,30px)}
  .keypoints{padding:18px 20px}
  .nextprev{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:44px 0}
  .section--ink{padding:40px 0}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .btn{width:100%}
  .nav-cta .btn,.hero-actions .btn{width:auto}
  .author-card{padding:20px}
  .breadcrumb{font-size:12px}
}
@media (max-width:420px){
  .btn{width:100%}
  .btn-sm{width:auto}
}

/* roulang page: category1 */
:root{
  --brand:#FF5A2B;
  --brand-deep:#D93F13;
  --brand-soft:#FFF0EA;
  --accent:#12B886;
  --accent-soft:#E6F8F2;
  --amber:#F2B705;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --ink:#14171A;
  --text:#14171A;
  --text-2:#4A5056;
  --text-3:#7C8388;
  --line:#E6E0D8;
  --line-dark:rgba(255,255,255,.14);
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,23,26,.06),0 12px 28px -14px rgba(20,23,26,.20);
  --shadow-hover:0 2px 6px rgba(20,23,26,.08),0 22px 44px -18px rgba(20,23,26,.30);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font:inherit;color:inherit}
::selection{background:var(--brand);color:#fff}
section[id],div[id]{scroll-margin-top:88px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--surface{background:var(--surface)}
.section--bg{background:var(--bg)}
.section--ink{background:var(--ink);color:#fff;padding:56px 0}
.section--ink .sec-head h2{color:#fff}
.section--ink .sec-head p{color:rgba(255,255,255,.62)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.28;margin:0 0 8px}
.sec-head p{margin:0;font-size:15px;color:var(--text-2);max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;border:0;text-decoration:none;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(255,90,43,.9)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(255,90,43,.95)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#F3EEE7;color:var(--ink);transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:3px;border-radius:8px;
}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 26px -20px rgba(20,23,26,.55)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:-.01em;flex-shrink:0;color:var(--ink)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  display:grid;place-items:center;color:#fff;
}
.logo-mark svg{width:19px;height:19px}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;color:var(--text-2);padding:8px 0}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);border-radius:2px}
.nav-cta{flex-shrink:0}
.mobile-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);place-items:center;background:#fff;
}
.mobile-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.mobile-toggle span::before,.mobile-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.mobile-toggle span::before{top:-6px}
.mobile-toggle span::after{top:6px}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);background:#fff;z-index:120;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  padding:24px;display:flex;flex-direction:column;box-shadow:-20px 0 50px -24px rgba(20,23,26,.6);
}
.drawer.open{transform:translateX(0)}
.drawer-close{align-self:flex-end;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:20px;line-height:1;display:grid;place-items:center;margin-bottom:18px;background:#fff}
.drawer a.drawer-link{font-size:17px;line-height:52px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer a.drawer-link.active{color:var(--brand);font-weight:600}
.drawer .btn{margin-top:22px}
.drawer-mask{position:fixed;inset:0;background:rgba(20,23,26,.42);z-index:110;opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease)}
.drawer-mask.open{opacity:1;visibility:visible}
/* ---------- 分类栏头 ---------- */
.page-head{background:var(--surface);border-bottom:1px solid var(--line);padding:26px 0 30px}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C9C2B8}
.breadcrumb .current{color:var(--text-2)}
.page-head-grid{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:end}
.page-head h1{font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1.2;margin:0 0 10px;letter-spacing:-.01em}
.page-head h1 .dot{color:var(--brand)}
.page-head-desc{margin:0;font-size:15px;color:var(--text-2);max-width:640px}
.head-stats{display:flex;gap:14px}
.head-stat{
  min-width:132px;background:var(--bg);border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;transition:box-shadow var(--ease),transform var(--ease);
}
.head-stat:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.head-stat b{display:block;font-family:var(--mono);font-size:24px;font-weight:600;letter-spacing:.02em;color:var(--ink);line-height:1.2}
.head-stat span{font-size:12px;color:var(--text-3)}
/* ---------- 筛选条 ---------- */
.filter-bar{background:var(--bg);border-bottom:1px solid var(--line);padding:14px 0}
.filter-scroll{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px}
.filter-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1.5px solid var(--line);background:#fff;color:var(--text-2);
  font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;
  transition:all var(--ease);white-space:nowrap;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;box-shadow:0 8px 18px -12px rgba(255,90,43,.95)}
.chip .mono{font-family:var(--mono);letter-spacing:.02em}
/* ---------- 夜跑局列表 ---------- */
.run-list{display:grid;gap:16px}
.run-row{
  display:grid;grid-template-columns:200px 1fr auto;gap:22px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--shadow);transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.run-row:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#DCD4C8}
.run-thumb{aspect-ratio:3/2;border-radius:var(--r-img);overflow:hidden;background:#EFEAE2}
.run-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.run-row:hover .run-thumb img{transform:scale(1.04)}
.run-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.run-top h3{font-size:17px;font-weight:700;margin:0;line-height:1.4}
.status{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:6px;font-size:12px;font-weight:600;white-space:nowrap}
.status-open{background:var(--accent-soft);color:#0B8C63}
.status-soon{background:#FFF6DA;color:#8A6500}
.status-full{background:#F0EDE8;color:var(--text-3)}
.run-meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;color:var(--text-3);margin-bottom:12px}
.run-meta span{display:inline-flex;align-items:center;gap:6px}
.run-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:#D6CEC2}
.run-meta span:first-child::before{display:none}
.pace-badge{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:6px;
  background:var(--accent-soft);color:#0B8C63;font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.run-foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.avatars{display:flex;align-items:center}
.avatars i{
  width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);
  font-style:normal;font-size:11px;font-weight:700;display:grid;place-items:center;
  border:2px solid #fff;margin-left:-8px;
}
.avatars i:first-child{margin-left:0}
.avatars i:nth-child(2n){background:var(--accent-soft);color:#0B8C63}
.run-count{font-size:12px;color:var(--text-3);font-family:var(--mono);letter-spacing:.02em}
.run-action{display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.run-action small{font-size:12px;color:var(--text-3)}
.list-more{display:flex;justify-content:center;margin-top:32px}
/* ---------- 安全清单 ---------- */
.safety-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.safety-item{
  display:flex;gap:12px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;padding:16px 18px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.safety-item:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-2px)}
.safety-check{
  width:20px;height:20px;border-radius:6px;flex-shrink:0;margin-top:2px;
  border:1.5px solid var(--line);display:grid;place-items:center;color:#fff;background:#fff;
  transition:all var(--ease);
}
.safety-item:hover .safety-check{background:var(--brand);border-color:var(--brand)}
.safety-check svg{width:12px;height:12px;opacity:0;transition:opacity var(--ease)}
.safety-item:hover .safety-check svg{opacity:1}
.safety-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:4px}
.safety-item p{margin:0;font-size:13.5px;color:var(--text-2);line-height:1.65}
/* ---------- 路线推荐 ---------- */
.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.route-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;display:flex;flex-direction:column;gap:14px;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.route-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#DCD4C8}
.route-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.route-card h3{font-size:17px;font-weight:700;margin:0;line-height:1.4}
.route-arrow{
  width:32px;height:32px;border-radius:50%;border:1.5px solid var(--line);
  display:grid;place-items:center;flex-shrink:0;color:var(--text-3);transition:all var(--ease);
}
.route-card:hover .route-arrow{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateX(3px)}
.route-arrow svg{width:14px;height:14px}
.route-facts{display:flex;flex-wrap:wrap;gap:8px}
.route-facts span{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--bg);border:1px solid var(--line);font-size:12px;color:var(--text-2);
}
.route-facts .mono{font-family:var(--mono);letter-spacing:.02em}
.route-note{margin:0;font-size:13.5px;color:var(--text-3);line-height:1.7}
/* ---------- 装备 ---------- */
.gear-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center}
.gear-photo{aspect-ratio:4/3;border-radius:18px;overflow:hidden;box-shadow:var(--shadow);background:#EFEAE2}
.gear-photo img{width:100%;height:100%;object-fit:cover;border-radius:0}
.gear-list{list-style:none;margin:0 0 26px;padding:0}
.gear-list li{
  display:flex;gap:12px;align-items:flex-start;padding:13px 0;font-size:15px;color:var(--text-2);
  border-bottom:1px dashed var(--line);
}
.gear-list li:last-child{border-bottom:0}
.gear-num{
  font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--brand);background:var(--brand-soft);border-radius:6px;
  min-width:26px;height:24px;display:grid;place-items:center;flex-shrink:0;margin-top:2px;
}
.gear-hint{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.gear-hint:hover{color:var(--brand-deep)}
.gear-hint svg{width:15px;height:15px;transition:transform var(--ease)}
.gear-hint:hover svg{transform:translateX(3px)}
/* ---------- 常见问答 ---------- */
.faq-list{display:grid;gap:10px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;position:relative;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.faq-item[open]{border-color:#DCD4C8;box-shadow:var(--shadow)}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 52px 18px 22px;position:relative;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-icon svg{width:12px;height:12px}
.faq-item[open] .faq-icon{transform:translateY(-50%) rotate(180deg);background:var(--brand);color:#fff}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-body p{margin:0 0 10px}
.faq-body p:last-child{margin-bottom:0}
/* ---------- 专题入口 ---------- */
.channel-wrap{display:flex;flex-wrap:wrap;gap:12px}
.channel-pill{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--surface);border:1.5px solid var(--line);font-size:14px;font-weight:500;color:var(--text-2);
  transition:all var(--ease);
}
.channel-pill:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.channel-pill i{font-style:normal;font-family:var(--mono);font-size:11px;color:var(--brand);background:var(--brand-soft);border-radius:5px;padding:2px 6px;letter-spacing:.02em}
/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--ink);color:#fff;padding:48px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin:0 0 8px;color:#fff}
.cta-inner p{margin:0;font-size:15px;color:rgba(255,255,255,.62);max-width:560px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-link{font-size:14px;color:rgba(255,255,255,.7);border-bottom:1px dashed rgba(255,255,255,.35);padding-bottom:2px}
.cta-link:hover{color:#fff;border-color:#fff}
/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:56px 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo small{color:rgba(255,255,255,.5)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:360px;line-height:1.85}
.footer-col h4{font-size:14px;font-weight:600;margin:0 0 14px;color:#fff}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:20px 0 26px;border-top:1px solid var(--line-dark);font-size:13px;color:rgba(255,255,255,.45);
}
.footer-strip{height:4px;background:linear-gradient(90deg,var(--brand),var(--brand-deep),var(--accent))}
/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .run-row{grid-template-columns:170px 1fr auto;gap:18px}
  .route-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1024px){
  .nav-links{gap:20px}
  .hero-grid{grid-template-columns:1fr}
  .gear-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .page-head-grid{grid-template-columns:1fr;align-items:start}
  .head-stats{justify-content:flex-start}
}
@media (max-width:960px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .mobile-toggle{display:grid}
  .section{padding:48px 0}
  .section--ink{padding:40px 0}
  .run-row{grid-template-columns:150px 1fr;gap:16px}
  .run-action{grid-column:1 / -1;flex-direction:row;justify-content:space-between;align-items:center}
  .safety-grid{grid-template-columns:1fr}
  .route-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:26px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:44px 0}
  .page-head{padding:20px 0 24px}
  .page-head h1{font-size:28px}
  .head-stats{width:100%}
  .head-stat{flex:1 1 0;min-width:0;padding:12px 14px}
  .head-stat b{font-size:20px}
  .run-row{grid-template-columns:1fr;gap:14px;padding:14px}
  .run-thumb{aspect-ratio:16/9}
  .run-action{flex-direction:column;align-items:stretch;gap:10px}
  .run-action .btn{width:100%}
  .run-action small{text-align:center}
  .btn{height:44px;padding:0 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .cta-link{width:100%;text-align:center;border-bottom:0}
  .channel-pill{height:40px;padding:0 16px;font-size:13.5px}
  .faq-item summary{padding:16px 48px 16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px;font-size:14.5px}
}